后续版本的 Microsoft SQL Server 将删除该功能。请避免在新的开发工作中使用该功能，并着手修改当前还在使用该功能的应用程序。
The MaximumChar property returns the maximum number of characters used when a value of the data type is converted to a character string.
语法
object
.MaximumChar
Parts
- object
An expression that evaluates to an object in the Applies To list
Data Type
Long
Modifiable
Read-only
Prototype (C/C++)
HRESULT GetMaximumChar(LPLONG pRetVal);
备注
Characters such as string terminators are not included in the character count.
The MaximumChar property returns a character count, not the number of bytes required to store a string of that length. The MaximumLength property can return the number of bytes required to store a value for a data type.
For example, for the SystemDatatype object that references the nchar data type, MaximumChar returns 4,000. The MaximumLength property for the object returns 8,000, because each nchar character requires two bytes for storage.
Applies To:
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